Re: Star System Generation (Now at the RIGHT place :/)
Looks real nice. Probably most of my comments reflect your source material rather than anything else.
* If the atmosphere has oxygen, then methane is going to be at most a trace constituent. The reverse is also true.
* At high temperatures, water can be an important atmosphere gas.
* In what units are the planetary density? Tons/m^3 is what I'd expect, but looking at your numbers, it seems more likely to be relative to the Earth.
* Unless they are very cold, terrestrial-mass planets cannot retain hydrogen and helium in their atmospheres for very long.
* Tidal locking and orbit circularization tend to go together, though Earth's Moon is a prominent exception to this. The processes that give you tidal locking also work to circularize the orbit, and also (to a lesser extent) make the orbit coplanar with the main planet's equator. These processes operate most strongly on close moons and in systems with large planet/moon mass ratios.
* I think you might be able to fake up terrain features and planetary resources via an ad hoc planetary heat reservoir relation. Small bodies tend to lose heat quickly, their geological activity halts, and their surfaces become dominated by impact cratering and interesting mineral deposits stop being produced.
Other annoyances as I think of them